we have our head shaved 120 thosands and has the big valves the 1.890 and the 1.590 We was going to convert the head from the hydraulic set up over to Roller, we have all the lifters-roller followers-camshaft ect, but my main question is If we replaced it with the stock style roller cam what would it turn as far as rpm and what kind of timing should we go with as far as cam and distributor, trying to get this ready for a stock style class and just doing some experimenting,And as to what kind of power It should make